Upon importing and exporting from Blender it might prove quite useful since in the case of big files it can take up to several minutes.
In case you run Blender through the console, useful feedback is given in it, informing about the progress of the import and export process. (Optional: If you wish to update to a newer version, un-tick and tick again the add-on to reload it!)įor better understanding of the logic behind the add-on it is strongly recommended to have a quick (or thorough :-)) look on the CityJSON documentation if you are unfamiliar with it.
Select the downloaded ZIP and press Install Add-on from File.Įnable the add-on from the list, by ticking the empty box next to the add-on's name.
Run Blender and go to Edit > Preferences > Add-ons and press the Install.
Installationĭownload this repository as zip (through GitHub this can be done through the Clone or download > Download ZIP button). Depending on your machine, it could take some seconds up to few minutes minute to import the 3D city model. With the rest sample CityJSON files everything should work noticeably faster. Trying to import really big datasets such as New York will take several minutes because of the amount of information contained. In case you have 3D city model datasets encoded in CityGML you can use the free Conversion Tool to convert to and from CityGML and CityJSON and vice versa. You can find sample datasets at the official CityJSON website. All buildings' levels of detail (LoD), attributes and semantic surfaces are stored and can be accesed via Blender's graphical interface. Up3dateĪ Blender add-on to import, edit and export new instances of CityJSON-encoded 3D city models. Although I am very excited to see that, I can't guarantee how much and how often Up3date going to be further developed. I plan to keep developing this add-on as a free-time project since I enjoy it a lot and because I see that there are many enthusiasts out there already using it in ways more serious than I expected. Its functionality was further developed for the needs of their MSc thesis An integrative workflow for 3D city model versioning This add-on was originally developed by Konstantinos Mastorakis ( konmast3r) as part of their research orientation project for the MSc Geomatics programme of TU Delft.